My friend tried Salvia a couple months ago and had a life altering experience.  It is most likely very symbolic in nature, and he would like some feedback and interpretations. 

Within moments of inhaling the herb, he felt himself merging with the carpet.  Suddenly he lost his former identity and became the carpet.  There were people holding him, as the carpet, up over their head, a person for each part of his body.  They were having a conversation about how it was silly that my friend thought that he existed, because in reality he did not.  They asked him why he continued to play this game of reality, why he continued to fool himself.  He began to panic.  Then the people started to split up and leave, all these aspects of my friend were separating, and this disturbed him greatly.  Soon after the experience ended.

His recent Salvia experience was almost identical.  He entered the same state of being, where he was the carpet and the people were telling him that reality was just a game and he did not exist.  This time he resisted when they started to split up, however.

I told him my interpretation, but maybe others can see this experience in a different way and give him further insight.  Thanks!

I don't believe that any of us are actually the people we pretend to be while we live in this World. What we go through is just a temporary learning experience to gather information that we can use later on without being caught up in what we learn.

Perhaps your friend was being told that he doesn't have to be like a carpet on a floor. He should elevate himself and be like a magic carpet. The people that held your friend up represent the knowledge his higher self accumulated through past incarnations and other means. He is more than the person he believes himself to be.